Runner with Dwarfism: There Is No Typical Marathon Body

"What she showed me is there's probably more inside of me where I can probably run faster," he said. "I think a lot of people limit themselves either by what other people are telling them or other people's ideas. A lot of times, limits are false, and you can push yourself a lot further."

Young was on "Heartbreak Hill" five miles from the Boston Marathon finish line on marathon day when he felt proudest of his athletic achievements. He passed a young son and his father. Like many children who see him, this boy said loudly, "Look at that little man running."

"Sometimes parents ignore them or get embarrassed," Young said.

But this father turned to his son and explained that he'd read about Young in the newspaper, and that he was going to be the first man with dwarfism to complete the Boston Marathon.

Young was so proud, he could have stopped right then, he said.

"There's no type of marathon body," Young said. "If you train, put in hard work and follow through, you can do it."